Ruby - Basics of Programming (RUBY1)

Programming, Programming - other

This course introduces the scripting language Ruby to complete beginners and to developers from other languages. You will install a local development environment, run the classic Hello World, and practice basic syntax and debugging.

The lessons mix concise theory and hands-on tasks: learn to work with variables, files and objects, use external gems, and call web APIs. By the end you'll be ready to script solutions or move on to Ruby on Rails.

Location, current course term

Contact us

Custom

Customized Training (date, location, content, duration)

The course:

Hide detail

• Introduction to Ruby

• Installing the environment

• Hello World

• Language features

• Working with numbers
1. Calculator
2. Operators and precedence

• Playing with strings

• Variables 1

• Summary of part 1
1. a = (x = nil or 3)

• Scopes and visibility
1. Global scope and variables
2. Environment-defined global variables
3. Local scope and variables

• Inputs

• Naming conventions

• Functions / methods
1. Calling functions and methods with _? and _!
2. Defining your own function

• Summary of part 2

• Advanced string handling
1. How to find available methods?
2. Operators on strings
3. Even strings are not always simple

• Basic constructs
1. Conditionals
2. Loops

• Blocks in Ruby

• Summary

• Variables 2
1. Arrays
2. Ranges
3. Symbols
4. Hashes
5. Random numbers

• Working with files

• Summary

• Regular expressions

• Classes and objects
1. Defining methods and "method_missing"
2. Inheritance
3. Overloading / overriding

• Summary
1. Practical example: How to bulk rename files

• Exceptions
1. Catching exceptions
2. Raising exceptions
3. Custom exceptions

• Logging

• Time and date in Ruby

• Summary

• Gems and Ruby libraries

• Calling services via API
1. Practical example: Fetching data from ARES using company ID

Assumed knowledge:

Knowledge of any programming language helps but is not required.

Schedule:

2 days (9:00 AM - 5:00 PM )

Language: